Easy way to calculate your iq in less than 5 seconds

ELO ~ (IQ*10) + 1000 (Equation 1)

(in here "~" means with years of effort and hard work you can achive this elo)

now to find IQ from ELO using equation 1:
(ELO-1000)/10 ~ IQ (approximate IQ)
for example:
magnus ELO - 2882 (highest)
using the equation
2882-1000 = 1882
1882/10 = 188.2
estimated iq 188.2
use it for the highest elo only *edited to prevent confusion*

A few experts estimated Magnus Calsen's IQ to be around 190 (check the source for more information)
sources:
Magnus Calsen's IQ: https://gamelevate.com/what-is-magnus-carlsens-iq-smartest-chess-players/#:~:text=It%20might%20turn%20out%20to,during%20the%202014%20World%20Championship.
ELO and IQ relationship: https://thechessworld.com/articles/healthpsycology/chess-rating-and-iq-score-correlation/

you have to reach the highest ELO that you can achive this Equation Show the maximum elo you can achive with respect to your iq since people with higher iq tends to have higher ELO 
this only works if you have achived your maximum ELO With Years Of Effort if you Really Wanna Know Your IQ then i suggest you do a iq test from mensa here
https://www.mensa.org/public/mensa-iq-challengeFor the results to be as valid as possible, make sure that the room you sit in is properly ventilated and free from distractions and that you can work uninterrupted for 25 minutes.

I have used Magnuses Highest Rating ever, which took years to do so and i took his highest ever ELO he got, which is 2882 which i used which gave me approximate of 188.2 and expert say his iq is approximatly 190 but for that YOU HAVE TO PLAY CHESS FOR A LONG TIME TO GET THE HIGHEST POSSIBLE ELO RATING THAT YOU CAN ACHIVE magnus has been playing for 19 years
Now If you want to calculate your ELO from Your IQ you can use this equation and a IQ test from a authentic source like mensa (https://www.mensa.org/public/mensa-iq-challenge)

what do you mean?
ELO is a rating used in chess to tell how good a player this (reply for if you dont know what elo is)
well you have to play chess for a very long time or learn as quick as possible to achive max elo inorder to find your iq (if you dont know whats ur highest elo)

Hover over 'Play', in the left-hand pane, then click on leaderboard and it will show you what your rating is as a percentile of all players (for example, after playing four rated games, I had a rating of 1252 for daily chess, which put me above 90.5% of players). If chess were an accurate reflection of IQ, you could easily convert that into an IQ - just Google 'IQ rarity chart' and look it up - mine came out as 123. In practice though, IQ is a very broad thing, so basing it on chess alone would tend to exaggerate the IQ of good players, and underestimate the IQ of poor players. I expect that most people would get a better estimate of their true IQ by applying a weighted average of their chess-based IQ and some number around 100, depending on how long you've played chess for. It would be fairly easy to come up with a reasonably predictive model using multiple linear regression on a large dataset of people who have done both an IQ test and also have a chess rating, and have some record of how much time they've spent playing chess in their life. Also, in the case of people who've only played a few games, it would probably be better to use the average of what you get when you get the computer to analyse your games and estimate your rating based on how you played, rather than your actual rating. For example, since I've only played low-rated people so far, my true chess rating is probably understated. In the last game I played, I won against an 1800-rated bot with 92.5% accuracy, and the computer estimated my rating to be 2150! If that were the case, I'd be in the top 2,000 players out of 4,613,819, and my percentile would be 99.957th percentile, and my chess-based IQ would be 150. But of alas, my average game isn't that good